I recently put on the first layer of skim coat and after it dried I noticed that it is bubbling up. I started to scrap away where the bubbles are but I've been taking a lot of dry wall paper past the areas that are not bubbled up. Should I continue to peel the paper even if it is not bubbling? I was thinking about using a razor knife to cut around where it is bubbling and scraping inside that area. Then once I finish I will apply primer and then skim coat over that. Thanks!! :help: